The CSF "No Limit" B58 & S58 Air-to-Air Billet Manifolds (CSF #8401 & #8402) come with one fuel rail for port injection (for 6 injector setups). For those looking to run dual port injection, CSF offers a second fuel rail kit. The CSF #8404 Fuel Rail Kit comes with all the necessary mounting hardware and features the same -8 ORB fitting as the primary rail. It can be set up as a return or returnless system.
The CSF #8404 Cooling product is designed to be a "Custom Fit" application. The product installion may require modifications. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.
For those looking to run dual port injection, CSF offers a second fuel rail kit. The CSF #8404 Fuel Rail Kit comes with all the necessary mounting hardware and features the same -8 ORB fitting as the primary rail.
The second fuel rail kit is made by CSF's long time strategic manufacturing partner Custom Plenum Creations (CPC) and only fits the CSF #8401 & #8402.
For secondary top feed port injection (additional 6 injectors for a total of 12 injectors) on the CSF #8401 and #8402
Second Fuel Rail Kit for CSF 8401/8402 B58 & S58 Air-to-Air Billet Manifolds
CNC machined 6061 Billet Aluminum Made by CPC (Made in Australia)
CSF Second Fuel Rail Kit for CSF BMW S58/B58 Air-To-Air Manifolds
Includes -8 ORB plug for returnless setup
CSF 8404 - A2A 2nd Fuel Rail
Includes Mounting Hardware
Fuel Injection Fuel Rail
CSF 2nd Fuel Rail